Watch case bottom



FIG. 1 is a rear perspective view of a watch case bottom showing our new design;

FIG. 2 is rear perspective view thereof;

FIG. 3 is a front perspective view thereof;

FIG. 4 is a front perspective view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a left side view thereof;

FIG. 8 is a right side view thereof;

FIG. 9 is a top view thereof; and,

FIG. 10 is a bottom view thereof. 

The ornamental design for a watch case bottom, as shown and described. 